created the relationships model and associated files
added a validity test to the user model
testing user for the a relionships attribute
tested and implemented user/relationships belongs_to association
test and application code for Relationship model validations
added the user.followed_users association
tests for following utility method
application code for following and follow utility methods
test and application code for unfollow utility methods
test and application code for followers
added follower/following relationships to sample data
defined routes for followers and following
implemented the stats partial
implemented the follow/unfollow forms
tests for followers and following pages
implemented followers and following page
follow/unfollow button now working
tests for the Relationships controller responses to Ajax request
implentation for the Relationships controller responses to Ajax request
final tests for the status feed